Lumber-drier



(No lv lodel.) H. J. MORTON. LUMBER DRIER Patented Jan. 18,1898.

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7n: mam: an as co UNITED STATEs PATENT Oriana.

HORACE J. MORTON, OF CHICAGO, ILLINOIS.

LUMBER-DRIER.

SPECIFICATION forming part of Letters Patent No. 597,543, dated January18, 1898. Application filed October 2l, 1896. Serial No. 609,633. (Nomodel.)

To all whom it may concern:

Be it known that I, HORACE J. MORTON, a

resident of Chicago, in thecounty of Cook and is particularly animprovement upon those set out, described, illustrated, and claimed inLetters Patent of the United States granted to me on the 226. day ofOctober, 1895, numbered 548,445.

The object of this invention is to obtain an improved construction ofthe inlet and outlet air passage ways, respectively, in a lumber-drierof the kind or class describedthat is to say, to obtain a constructionwhich will he more durable than the constructions heretofore used, morecheaply made, and which will afiord better facilities for controllingthe ingress and egress of air to and from the lumber-drier.

In the drawings accompanying and form'- in g a part of thisspecification, Figure 1 is a vertical sectional View of a lumber-drierhavin g my inventionembodied therein; and Fig. 2, a perspective view ofthe central part of a portion of the top androof of such lumberdrier,showing the several constructions particularly embodying the invention.

A reference-letter applied to a given part is used to designate suchpart throughout both figures of the drawings wherever the same appears.

A is the floor of the lumber-drier, and a the false floor thereof.

A A are the outer side walls of the lumberdrier, and a a are the innerside walls thereof. The studding B B of the lumber-drier being placedbetween such side walls A a vertical passage-ways are thereby formed.The false floor a preferably extends from the inner side walls a a,respectively,toward the center of the lumber-drier and to underneath thesteam heating coils or pipes F F.

B B are the studding of the side walls of the lumber drier, and b b arepieces of studding laid on the floor A, on which pieces of studding thefalse floor a is laid.

G O are openings through the inner walls o a, through which the heatedand moistureladen air can pass from the lumber-drier into thepassage-ways d d when covers D are removed from thereover.

C O are the discharge-openings from the lateral passage-ways (1 61 suchlateral passage-ways communicating with the vertical passage-ways (2respectively.

E E are standards supporting the longitudinally-extending stringers e eand also supporting the cross-pieces E E, on which the steam heatingpipes or coils F F are placed.

A is the roof of the drier ,and a is a sheathing thereunder, such roofand sheathing be ing secured to the rafters B B C C are openings inplanks A A, respectively, through which openings moisture laden aircontained in longitudinally-extending passage-way O is dischargedtherefrom. More than one plank A is necessary to ohtain the lengthrequired for the passage-Way C", and such planks are not connectedtogether. Each of such planks can therefore be moved separately toregister the openings G C, and the number of such openings whichareregistered by the moving of any given plank A depends upon the lengthof the plank, which is usually an ordinary sixteenfoot plank havingeight (8) openings C therein.

a a are the plankings forming the sides of the longit-udinally-extendingpassage-way C, such plankings being secured to the vertical studdings aa and such longitudinally-extending passage-way G being divided by thestuddings a a into compartments which are open at the bottom to admitmoisture-laden 'air from the lumber-drier and at the top (when the plankA, forming a cover, is in proper relation to plank A forming the top orceiling of such )assa e-wa Y C so that the a ertures Passage-ways D Dcommunicate, respectively, with vertical passage-ways d d Pas- Isage-ways D D are formed by the planks a a hereinbefore referred to asforming the walls of the longitudinally-extending chamrber C, the postsD D rafters E 13 and plank D The posts D D extend above the movableplank A and D is a plank resting I on the top of such posts, such plankD extending longitudinally the entire length of the lumber-drier. V r

D D' are the covers to apertures O O in the inner side walls a a.

Y Y is a pile of lumber in position for dry:

, Y, and so much ofisuch moisture-laden air as enters compartments oflongitudinz-tlly-extending chamber C which have openings 0 0 open willpass from the lumber-drier through such openings. Other portions of suchmoisture-laden air will pass through the openings 0 C,which have thecovers D D thereof open, and willbecome mixedwith the fresh air passingdownward in passage-ways d d (into which passage-ways the apertures O 6open,)

and passing along with such air are discharged from the lateralpassage-ways d (i through openings or discharge ends O 0 into the drierunderneath the pipes or coils F F, to be thereby heated and forcedupward through the ln m? her-drier and the contents thereof. Theadmission of air into the passage-Ways D D and passing thence throughpassage-ways D D (Z 61 and d d and discharged therefrom into the drieris controlled by those of the openings 0 O which are opened by theproper relative position of planks A A as when a certain pressure of airand vapor obtains in the drier no more air will pass into the drieruntil some of the discharge-openings O C in planks A A are made toregister and so opened. When some of the planks A A are brought intoproper relative position to reg ister the openings 0 0 fresh air willenter several of the adjacent passage-ways D D, so that fresh air issupplied to the drier along the length thereof through those of thepassage-ways D D corresponding in position longitudinally with those ofthe openings C C which are registered by longitudinal adj ustment ofplank A on plank A respectively.

In the use of the lumber-drier it will at times be found necessary tohave the openings C C at one end of such lumber-drier entirely open,those at the other end entirely closed, and the intervening ones partlyopen and partly closed, such openings being from time to time changed tosuit the varying kinds and conditions of the lumber being dried.

I do not deem it necessary to have the apertures O 0 opened ordinarily,and at no time is the opening thereof to equal in volume of delivery thecapacity of the several passageways I), D 01 and d Having thus describedmy invention, what I claim as new, and desire to secure by LettersPatent, is-

1. In a lumber-drier receiving and discharging air through the roofthereof, and having laterally-extending air passage-ways under the roof,studding extending along the 'middle line of the roof and resting on therafters of the drier, parallel, longitudinallyextending perpendicularwalls forming in combination with the studding and rafters a series ofairdiseharge compartments, a top having openings therethrough, to suchairdischarge compartments,longitudinally-movable Planks, resting on suchtop, openings through such planks which may be registered with theopenings through the top of the compartments by sliding the plank,additional studding resting on the rafters and against thelongitudinallyextending walls of the airdischarge compartments, andadditional perpendicular walls secured to the last-named studding,whereby a series of air-outlets are obtained extending longitudinallyalong the middle line of the roof of the drier and a series ofair-inlets discharging into the later-' ally-extending air passage-waysare obtained adjacent to and on each side of the air-outlets;substantially as described.

2. In a lumber-drier, the combination of rafters extending laterallyacross the lumberdrier, studding on the rafters midway thereof, plankingsecured to such studding and extending down between the rafters, forminga series of air-discharge chambers, a top with openings therethrough tosuch series of airdischarge chambers, a movable board having openingstherein corresponding with the open ings through the top of suchair-discharge chambers, lateral passage-ways between the roof and thesheathing under therafters, on each side of the air-discharge chambers,additional studding on the rafters and against the planking of thefirst-named studding and extending above such planking, planking securedto the additional studding, forming series of air-inlets communicatingwith the lateral air passage-ways, means for conducting the air fromsuch lateral air passageways into the lumber drier underneath theheatingpipes thereof, and a roof resting on the outside series ofstudding above the openings from the discharge-chambers, forming alongitudinally-extending chamber discharging its contents between theouter series of stud cling; substantially as described.

HORACE J. MORTON.

In presence of CHARLES TURNER BROWN, F. L. BROWN.

